The Monmouth County Plank Road was a plank road in New Jersey, running north from Freehold to Keyport by way of Matawan. Its path is now roughly followed by New Jersey Route 79.
The Monmouth County Plank Road was chartered February 20, 1850 to run from Freehold to Keyport.
References
Monmouth County Plank Road Wikipedia(Text) CC BY-SA